{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\toprule
 & \multicolumn{3}{c}{Panel A: $ \beta^{ER} $ } & \multicolumn{3}{c}{Panel B: $ \beta^{COL} $} \\ \cmidrule(lr){2-4} \cmidrule(lr){5-7} 
 & Non-Single & Single & All & Non-Single & Single & All \\
 &(1)&(2)&(3)&(4)&(5)&(6) \\ \midrule
\addlinespace
Baseline    &    1.506\sym{**} &   -0.004         &    0.957\sym{*}  &   -0.793         &    0.414         &   -0.403         \\
                & (0.627)         &  (0.947)         &  (0.516)         &  (0.619)         &  (0.756)         &  (0.478)         \\
\addlinespace
Experimental    &  2.958\sym{***}&   -1.617         &    1.751\sym{*}  &    0.028         &    1.319         &    0.471         \\
                &  (1.082)         &  (2.022)         &  (0.965)         &  (1.045)         &  (1.235)         &  (0.791)         \\
\addlinespace
Experimental $+$ Long Term&    2.845\sym{***}&   -2.192         &    1.323         &    0.664         &   -1.176         &   -0.072         \\
                &  (1.065)         &  (2.189)         &  (0.975)         &  (0.945)         &  (1.215)         &  (0.759)         \\
\bottomrule
\end{tabular}
}
